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<?php |
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namespace Schnittstabil\Harmonizer; |
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/** |
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* Harmonizer. |
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*/ |
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class Harmonizer |
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{ |
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public $server; |
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/** |
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* Create a new Harmonizer instance. |
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* |
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* @param array $server array to infer |
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*/ |
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public function __construct(array &$server) |
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{ |
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$this->server = &$server; |
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} |
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/** |
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* Add entry to an array iff it doesn't exist an entry with the same key. |
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* |
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* @param array $array array of entries |
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* @param mixed $key key of new entry |
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* @param mixed $value value of new entry |
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*/ |
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private function arrayAdd(array &$array, $key, $value) |
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{ |
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if (!isset($array[$key])) { |
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$array[$key] = $value; |
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} |
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} |
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/** |
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* Infering (in-place) missing REDIRECT_ variables in `$server`. |
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* |
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* @return static |
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*/ |
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public function harmonizeRedirectVariables() |
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{ |
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foreach (array_keys($this->server) as $redirectKey) { |
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$key = $redirectKey; |
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while (substr($key, 0, 9) === 'REDIRECT_') { |
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$key = substr($key, 9); |
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if (isset($this->server[$key])) { |
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$redirectKey = $key; |
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continue; |
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} |
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$this->server[$key] = $this->server[$redirectKey]; |
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} |
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} |
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return $this; |
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} |
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/** |
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* Infering (in-place) missing user variables in `$server`. |
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* |
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* @return static |
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*/ |
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public function harmonizeUserVariables() |
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{ |
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if (isset($this->server['PHP_AUTH_USER'])) { |
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$this->arrayAdd($this->server, 'REMOTE_USER', $this->server['PHP_AUTH_USER']); |
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} |
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if (isset($this->server['REMOTE_USER'])) { |
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$this->arrayAdd($this->server, 'PHP_AUTH_USER', $this->server['REMOTE_USER']); |
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} |
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return $this; |
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} |
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/** |
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* Infering (in-place) missing authorization variables in `$server`. |
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* |
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* @return static |
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*/ |
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public function harmonizeHttpAuth() |
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{ |
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if (isset($this->server['HTTP_AUTHORIZATION'])) { |
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$auth = $this->server['HTTP_AUTHORIZATION']; |
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if ('Basic ' === substr($auth, 0, 6)) { |
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list($username, $password) = explode(':', base64_decode(substr($auth, 6))); |
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$this->arrayAdd($this->server, 'AUTH_TYPE', 'Basic'); |
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$this->arrayAdd($this->server, 'REMOTE_USER', $username); |
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$this->arrayAdd($this->server, 'PHP_AUTH_USER', $username); |
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$this->arrayAdd($this->server, 'PHP_AUTH_PW', $password); |
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} elseif (preg_match('/^Digest .*username="(?P<username>[^"]*)".*$/', $auth, $matches)) { |
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$this->arrayAdd($this->server, 'AUTH_TYPE', 'Digest'); |
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$this->arrayAdd($this->server, 'PHP_AUTH_DIGEST', substr($auth, 7)); |
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$this->arrayAdd($this->server, 'REMOTE_USER', $matches['username']); |
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$this->arrayAdd($this->server, 'PHP_AUTH_USER', $matches['username']); |
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} |
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} |
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return $this; |
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} |
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/** |
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* Infering (in-place) missing variables in `$server`. |
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* |
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* @param array $server array to infer |
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* |
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* @return array $server |
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*/ |
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public static function harmonize(array &$server) |
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{ |
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return (new self($server)) |
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->harmonizeRedirectVariables() |
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->harmonizeUserVariables() |
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->harmonizeHttpAuth(); |
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} |
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} |
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schnittstabil /
harmonizer
